Hall lamp



(No Model.) 2 SfieetS-Sheet 1.

L. F. GRISWOLD.

HALL LAMP. No. 309.539. Patented Dec. 23, 1884.

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(No Model.) 2-SheetsShe:et 2.-

L. P. GRISWOLD.

v HALL LAMP. No. 309,539. Patented Dec. 23, 1884..

Z M i) WITNESSES: n INVBNTOR T BY ATTORNEY fnrrnn Smarts PATENT tries.

LEWIS F. GRISXVOLD, OF MERIDEN, CONNECTICUT, ASSIGNOR TO THE CHARLESPARKER COMPANY, OF SAME PLACE.

HALL LAIVIP.

SPECIFICATION donning part of Letters Patent No. 309,539, dated December213, 1884. Application filed April 12, 1884. (No model.)

To CLZZ whom it may concern:

Be it known that I, Lnwrs F. GRIswoLD, a citizen of the United States,residing at Meriden, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inHall-Lamps, of which the following is a specification, reference beinghad therein to the accompanying drawings.

This invention relates to hall-lamps which are suspended by chains andprovided with countcrbalancing devices, which allow them to be raisedand lowered, but hold them se eurely at any elevation. Such lamps arecommonly provided with an inclosing-frame, and a shade held in saidframe. In some instances the shade and lamp have been made movable inopposite directions, and in others the shade and frame are stationaryand the lamp alone moves.

My present improvement pertains to the former class or kind ofhall-lamps; and it consists,partly, in the combination, with the shadeframe and suspensionchains, of a lamp-frame composed of an upper ring,lower ring, and guide-rods, said lamp-frame being movable in a directionopposite to that of the shade and within the same.

The said invention also consists, partly, in the combination of a weightwith the lower ring or lamp-support, the weight being secured to orformed with said support, and counter-balancing the shade.

The said invention consists, finally, in the combination of bracing-armswith the shade ring, a collar, a guide-rod on which the collar moves,and suspension-chains attached at one end to said collar and at theother to the lamp-frame, substantially as set forth.

In the accompanying drawings, Figure 1 represents a vertical section ofa hall-lamp embodying my invention. Fig. 2 represents a detailperspective view of the weight which serves as a lamp-support, and Fig.3 represents a view similar to Fig. 1 of another form of my improvedextension lamp-fixture.

In Figs. 1 and-2, A designates the canopy, having pulleys a in itsslotted bottom, and a red, A, extending downward from its center, andprovided with a reflector, e. The outer ends of the suspending-chains Care connect ed to a casting, B, which forms part of the shade-frame. Theinner ends of said chains are attached to a ring, D, which is connectedto a dish-shaped plate or casting, D, by guide rods E. The lamp F restsupon the Weight K, hereinafter described, which is attached to or formspart of said dish-shaped plate or casting, and the parts D D and rods Econstitute an i'n'elosing-franie for said lamp. The

shade H (which may be either circular, square, or polygonal incross-section) incloses said lamp. The frame of said shade consists ofthe upper casting, B, the lower casting, B, and the coimecting-pieces.It is obvious that when the parts are thus connected the shade and lampwill tend to counterbalance one another; hut as the lamp is not normallyso heavy as the shade and shade-frame, Isupply the plate or castingDwith a weight, K, which is attached to the top thereof under the lamp.This weight will compensate for the considerable amount of metal in theshade-frame, and enable the parts to work easily up and down, and to beheld in the new positions to which they are thus adjusted. The support Dis provided with a handle, G, which facilitates the drawing of said lampbelow said shade, so that the chimney L may be removed and the lampfilled and cleaned. In this class of lamps the raising and loweringthereof are not for thepurp'ose of regulating illumination, but for thepurpose of removal or replacement. The only operative position is theone shown within the shade; but the ability to lower the lamp isimportant in the operations of filling and cleaning, and the weight K isvaluable, inasmuch as it prevents the lamp from being drawn upautomatically when the grasp thereon is released. The guide-rods Eprevent the lamp and its chimney from rattling against the shade andshade-frame as said lamp is drawn down and said shade-frame and shadeare drawn up. This also is a novel feature, and one of great and obviousutility.

These rods also prevent the frame and shade from swinging away from thelamp-support, and always hold these parts together when fixture isextended and shortened.

In Fig. 3, the rod Ais provided with a sliding collar, 13, to which areattached the upper ends of diverging arms J, the lower ends of which areattached to the upper part of the shade-frame 1-3. The inner ends of thechains .0 are attached to said collar, and the outer ends of said chainsare attached to the upper ring, D, of the lamp-frame. In thisconstruction the lower casting, K, which forms the lamp-support, movesup within the lower edge of the shade-frame.

The letters of reference, except as hereinbefore noted, are the same inFigs. 1 and 3. Fig. 1 shows the lamp drawn down below the shade. Fig. 3shows it pushed up within the same. Of course the arms J may be used ona fixture like that shown in Fig. 1 with very slight modifications ofthe other parts. Various other forms of shade may also be used with thedevices described. It will be observed that Figs. 1 and 3 are equallyapplicable to the illustration of a circular or a rectangular shade.

I am aware that it is not broadly new to provide a lamp-support withguide-rods which work upward through a shade-ring, the chimney and shademoving together and the lamp moving independently.

I am also aware that it is not broadly new to attach the shade andlamp-support to opposite ends of chains passing over pulleys in thecanopy, whereby the lamp counterbal ances the shade and chimney.

Having thus described myinvention, whatI claim as new, and desire tosecure by Letters Patent, is l 1. In a hanging lamp, the combination ofa shade, suspension-chains, and a lamp with a lamp-frame which ismovable with said lamp, and consists of the rings D D and the interposedguide-rods E, the shade being attached to one end of each chain and thelamp-frame to the other end thereof, in order that they may movesimultaneously in opposite directions, substantially as set forth.

2. The lamp-support D, provided with a weight, K, for counterbalancingthe shade, in combination with a shade-frame and chains which suspendthe shade and the lamp, sub- 45 stantially as set forth.

3. In combination with the collar 13 and the shade-frame, the arms Jextending from said collar to said frame, the lamp-frame, the guide-rodA, and the suspending-chains, attached at one end to the shade-frame andat the other to the said collar, substantially as set forth.

4. A lamp provided with a chimney, asupport, and guide-rods, allmovingtogether, in combination with a shade, shade-frame, andsuspending-chains, the shade and shade-frame counterbalancing thelamp-chimney, support, and guide-rods, substantially as shown.

In testimony whereof I affix my signature in 60 presence of twowitnesses.

LEWIS F. GRISWOLD.

Vitnesses:

DEXTER W. PARKER, RALPH A. PALMER.

